import { WRITE_THROUGH_HOLD_MS } from './writeThroughHold';

// Appointments this tab checked in, so another screen can read their Encounter by id while the search
// still reports them booked. Module-level so it outlives a route change within the tab.
const checkedIn = new Map<string, number>();

export const noteCheckIn = (appointmentId: string | undefined, now: number = Date.now()): void => {
    if (appointmentId) checkedIn.set(appointmentId, now);
};

export const recentCheckInIds = (now: number = Date.now()): Set<string> => {
    checkedIn.forEach((at, id) => {
        if (now - at > WRITE_THROUGH_HOLD_MS) checkedIn.delete(id);
    });
    return new Set(checkedIn.keys());
};